.a {
  transition: -webkit-transform, top, background-color 1s cubic-bezier(0.165, 0.84, 0.44, 1);
  transition: transform, top, background-color 1s cubic-bezier(0.165, 0.84, 0.44, 1);
  transition: transform, top, background-color 1s cubic-bezier(0.165, 0.84, 0.44, 1), -webkit-transform 1s cubic-bezier(0.165, 0.84, 0.44, 1);
}
